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Article
Kardan Journal of Economics
On the Determinants of Economic and Management Sciences
Growth: Empirical Evidence from
4 (2) 82–97
Afghanistan ©2021 Kardan University
Kardan Publications
Kabul, Afghanistan
https://kardan.edu.af/Research
Matin Karimi /CurrentIssue.aspx?j=KJEMS
Shahzad Anwar
Usman Ali
Abstract
This research reviewed the determinants of economic growth in Afghanistan on the basis of
endogenous and exogenous growth theories and empirical studies. The main objective of this
research was to address the impact of domestic investment, export, official development
assistance and import (independent variables) on the economic growth (dependent variable) in
Afghanistan. This study adopted a quantitative method of Ordinary Least Square regression and
Co-integration analysis to address the impact and long-run association among variables. The
findings from OLS regression depicted that domestic investment, export, and imports are
significantly correlated to economic growth, while foreign aid/official development assistance are
insignificant. In addition to OLS regression, researcher also did Johansen Co-integration test to
determine the long-run association of variables. It was found that long run relationship exists
among the variables, which reaffirm that domestic investment and foreign aid are significant
variables in bringing alteration in economic growth. This means that the Afghan government
should emphasize on attraction of domestic capital to boost investment and achieve high
economic growth as accordingly.
Keywords: Economic Growth, Foreign aid, Domestic Investment, Imports, Exports and
Afghanistan
JEL Codes: F35, F43, F1, P45
Introduction
During the course of history, social welfare and economic growth have
been decisive needs of every society and its citizens. In order for
governments to satisfy the needs of its citizens, some of them have been able
to achieve tremendous victories and climbed far ahead over the economic
ladder of success. However, majority of the remaining governments have
been left behind and could not make it to converge (Aghion & Howitt, 2008).
In order to understand that what causes economies to grow and why very
few countries made it to uplift their economic conditions, while majority of
the rest couldn’t converge, it’s necessary to know about the term economic
growth, its patterns, determinants, and fundamental causes (Grossman &
Helpman, 2004; Aghion and Howitt, 2008; Acemoglu and Guerrieri, 2008).
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According to majority of growth theories; accumulation of human
capital, physical capital, and increase in productivity as result of
technological advancement are some of the fundamental determinants for
long-run economic growth (Harrod, 1939; Domar, 1946; Solow, 1956; Swan,
1956; Cass & Koopmans, 1965; Lucas’s 1988; Barro, 1990; Romer, 1990;
Grossman & Helpmann, 1991; Rebelo, 1991; Aghion & Howitt, 1992;
Ortigueira & Santos 1997). However, for underdeveloped countries which
cannot generate adequate stock of capital from domestic source,
economists proposed to fill that gap through foreign aid or also known as
Official Development Assistance (Mercieca, 2010). Since ODA is inherently
an exogenous determinant to economic growth, it thus, can create
macroeconomic volatility as a result of decrease in the stock of foreign
reserves, if aid giving country stop funding (Collier, 2007; Joya, 2011; Janjua
et al., 2018). According to Denison (1962), economic growth is the inflation
adjusted increase in the production of goods and services over a specific
period of time. Given that, economist implies that economic growth usually
leads to more employment, increase in consumption, poverty reduction,
and overall social welfare (Aghion & Howitt, 2008). Majority of the
neoclassical and endogenous growth theorists agree upon that an increase
in economic growth is commonly measured through constant increase in
GDP per capita (Aghion & Howitt, 2008). Contrarily to that, Afghanistan for
the past four and a half decades has had an unstable and unparalleled
economic growth due to so many reasons like macroeconomic volatility,
major rely on foreign aid, civil wars, being landlocked, weak institutional
framework, corruption, and some sociocultural barriers (Joya, 2011).
According to the United Nations country-wide database facts and figures,
since 1970’s until 2014, Afghanistan’s GDP had an unstable and unparalleled
cyclic growth; sometimes from -0.3% to -16% (1970’s), sometime from -22% to
+49% (1990’s), sometimes even from -5% to +56 (2000) and +14% to +5%
(2013). However, since 2014 onward, Afghanistan maintained to have an
average GDP growth rate of +2.2%, which is indeed, not as perfect as it
should have been, but at least it shows that Afghanistan is on a constant
track of growth. Considering unparalleled changes in the GDP growth rate
of Afghanistan, it can be explicitly observed that due to some
unprecedented events Afghanistan was not able to maintain a constant
growth rate and this itself arises many questions in the mind of a researcher
to study about the factors and causes of economic growth in Afghanistan.
1.1 Research Objectives
With respect to problem statement and empirical literature review, lack
of adequate statistical facts and figures pave the way for this research to fill
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On the Determinants of Economic Growth: Empirical Evidence from Afghanistan
the gap of economic growth literature in Afghanistan and try to find some
significant evidence about the factors which affect economic growth of
Afghanistan. Thus, the following two research objectives are considered for
the study.
1. To determine the impact of official development assistances,
domestic investment, imports and exports on economic growth of
Afghanistan.
2. To determine the long run association among the economic growth,
official development assistances, domestic investment, imports and
exports of Afghanistan.
2. Literature Review
One of the main questions that always remained a debating topic in the
area of development economics is that why some of the countries are still
poor and how they can converge towards the rest of advanced and rich
countries. In order to find the answer, economists for the past one century
developed numerous growth models such as Gustav Cassel model (1924),
Harrod-Domar model (1939), Solo-Swan model (1956), AK model (1986),
Product-Variety model (1990-1991), Schumpeterian model (1992-1998) and
many more to know precisely about the mainstream causes, factors, and
effects of the economic growth. However, the pattern of said models are
different, but up to a certain level majority of theorists have agreed upon
mainstream variables such as human capital, physical capital, export,
import, and foreign aid and tried to incorporate them into their models
differently, so that comprehensive and convincing results can be obtained.
Literature related to economic growth is discussed from a broader lens
through theoretical and empirical review of the topic. However, there might
be inadequate literature about economic growth in Afghanistan, but every
effort is made to compile a number of research papers made by
independent researchers, national organizations, and some international
non-governmental organizations which are considering the issues of
economic growth in Afghanistan and South Asian region.
2.1 Theoretical Review
In many empirical studies and economic books it’s expressed that the
starting point for modern economic growth theorization is the neoclassical
Solo-Swan’s model (Petrakos & Arvanitidis, 2008; Aghion & Howitt, 2008),
but historically it’s the classical economists such Adam Smith (1776), David
Ricardo (1817), Thomas Malthus (1798), Gustave Cassel (1924), Allyn Young
(1928), Joseph Schumpeter (1934), and Frank Knight (1944) who has initially
expressed their views about the basic ingredients of economic growth (Kurz
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and Salvadori, 2003; Barro and Sala-i-Martin, 2004; Hagemann and Scazzieri,
2009). Now in order to have a general, yet profound understanding about
the historic development of growth theories, this paper considers
describing the growth theories on the bases of exogenous growth models
and endogenous growth models. However, for statistical analysis and
development of this paper’s model, Solo-Swan’s exogenous growth model
is considered as a base theory.
2.1.1 Solow-Swan Growth Model
Solo-Swam model of growth was independently developed by Robert
Solow and Trevor Swan in 1956 with the basic assumptions of constant
returns to scale, diminishing marginal productivity of capital, exogenously
determining the technological advancement, and substitutability between
labor and capital (Petrakos & Arvanitidis, 2008). The Solow-Swan model
principally sets within the framework of neoclassical economics which
attempt to explain the long-run economic growth by looking into the
technological progress in labor productivity and capital accumulation.
However, for economic growth this model explicitly emphasizes on capital
accumulation and inducement for saving, but still, it expresses that growth
will not last indefinitely without technological progress which neoclassical
theory takes as being impartial of economic forces, or exogenous (Aghion
& Howitt, 2008).
The neoclassical Solow-Swan growth model is known as an exogenous
growth model due to its profound philosophy unlike the precursor model of
Harrod-Domar that for long-run economic growth increases in productivity
(commonly referred to as technological progress in the exploitation of
factors of production) is a key exogenous determinant. However, for short-
run economic growth they have agreed with the Harrod-Domar model on
investment and labor productivity as the principal determinants (Solow,
1956 & Swan, 1956).
2.1.2 Exogenous Growth Models
Before emergence of exogenous growth theory or also known as
Solow-Swam model, Roy F. Harrod (1939) and Evsey Domar (1946) tried to
integrate Keynesian analysis with the economic growth elements to show
that the capitalist system is inherently unstable and that it cannot adjust
itself in the long-run between population growth and stock of capital.
However, in principle, Harrod was stressing on saving as a determinant for
long-run economic growth and investment along with labor productivity as
the key determinants for short-run economic growth (Harrod, 1939).
Nonetheless, Domar was agreeing on saving and investment (capital stock)
as the key determinants of economic growth, but with a slight extension
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